PS PS Agent TUM Calculations

Owned by Daniel Narayan (Unlicensed)
May 18, 2021
3 min read

APS allows users to input discrete Work Schedule Delays as well as Time Usage Factors which affect availability, utilisation and rate.

Loaders / Other Equipment

Loaders, diggers, drills, etc. each have 4 different factors which affect agent capability.

  • Unplanned Availability (UPA) - Affects available hours

  • Use of Availability (UA) - Affects Engine On hours - Note this should be the percentage of time the equipment could have been used, but intentionally was not.

  • Operator Efficiency (OE) - Affect Productive hours

  • Productivity Factor (PF) - Affect Productive hours

Note: These factors are applied after Work Schedule Delays are taken into account.

If an agent has 6 hrs of Work Schedule Delays in a 12 hr period, then the above factors apply to the remaining 6 hrs of the period.

Delays

Delays are discrete events which can be recurring or once off.

There are 4 possible delay states:

  • Available & Engine On: Relocation, Wall Scaling

  • Available & Engine Off: Meal Break, Shift Change

  • Not Available & Engine On: Maintenance Live Testing

  • Not Available & Engine Off: Service, Fuel Up

Order of delays is important. If the overlapping delays occur, then the higher ranked delay takes precedence and will be reported.

Calendar Fields

Scheduled Delays include ‘Do Nothing’ delays which occur if the agent is idle for any reason other than a specified delay.

Field

Calculation

Field

Calculation

Direct Utilisation

UPA * UA * OE * PF

Engine Factor

OE * PF

Agent Working Calendar Hours

Calendar Hours - Scheduled Delays

Available Hours

Agent Working Calendar Hours * UPA + Scheduled Delays Marked as Available

Engine Hours

Agent Working Calendar Hours * UPA * UA + Scheduled Delays Marked as Powered

Productive Hours

Agent Working Calendar Hours * Direct Utilisation

Report Fields

Field

Calculation

Field

Calculation

Agent.Availability

Available Hours / Calendar Hours

Agent.Utilisation

Productive Hours / Calendar Hours

Agent.Productive Rate

Nominal Rate * Direct Utilisation

Examples:

  • Period 1: Has a 6 hr delay where the machine is Available and Engine is Off.

  • Period 2: Has a 6 hr delay where the machine is Not Available and Engine is Off.

  • Period 3: Has 2 delays: 3 hr Available and Engine On, 3 hr Not Available and Engine On.

Calendar Results

Period 1

  • Agent Working Calendar Hours = 12 - 6 = 6 hrs

  • Available Hours = 6 * 0.9 + 6 = 11.4 hrs

  • Engine Hours = 6 * 0.9 * 0.9 + 0 = 4.86 hrs

  • Productive Hours = 6 * 0.6561 = 3.94 hrs

Period 2

  • Agent Working Calendar Hours = 12 - 6 = 6 hrs

  • Available Hours = 6 * 0.9 + 0 = 5.4 hrs

  • Engine Hours = 6 * 0.9 * 0.9 + 0 = 4.86 hrs

  • Productive Hours = 6 * 0.6561 = 3.94 hrs

Period 3

  • Agent Working Calendar Hours = 12 - 6 = 6 hrs

  • Available Hours = 6 * 0.9 + 3 = 8.4 hrs

  • Engine Hours = 6 * 0.9 * 0.9 + 6 = 10.86 hrs

  • Productive Hours = 6 * 0.6561 = 3.94 hrs